CN202381040U - 压差式循环节流阀 - Google Patents
压差式循环节流阀 Download PDFInfo
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- CN202381040U CN202381040U CN 201120524582 CN201120524582U CN202381040U CN 202381040 U CN202381040 U CN 202381040U CN 201120524582 CN201120524582 CN 201120524582 CN 201120524582 U CN201120524582 U CN 201120524582U CN 202381040 U CN202381040 U CN 202381040U
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Application Number | Priority Date | Filing Date | Title |
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CN 201120524582 CN202381040U (zh) | 2011-12-15 | 2011-12-15 | 压差式循环节流阀 |
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CN 201120524582 CN202381040U (zh) | 2011-12-15 | 2011-12-15 | 压差式循环节流阀 |
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CN202381040U true CN202381040U (zh) | 2012-08-15 |
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CN 201120524582 Expired - Lifetime CN202381040U (zh) | 2011-12-15 | 2011-12-15 | 压差式循环节流阀 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105484677A (zh) * | 2016-01-22 | 2016-04-13 | 东营市兆鑫工贸有限责任公司 | 一种分层压裂管柱用的油套管联通器 |
CN105840154A (zh) * | 2016-04-19 | 2016-08-10 | 陕西汇丰悦石油科技开发有限公司 | 一种新型卡瓦式井下节流器 |
CN109505560A (zh) * | 2017-09-14 | 2019-03-22 | 中国石油天然气股份有限公司 | 节流定压阀 |
CN110388183A (zh) * | 2019-07-18 | 2019-10-29 | 中国石油天然气集团有限公司 | 一种双层组合套管及其装配方法 |
CN115354988A (zh) * | 2022-10-21 | 2022-11-18 | 中石化西南石油工程有限公司 | 一种多次开关快速堵漏阀 |
-
2011
- 2011-12-15 CN CN 201120524582 patent/CN202381040U/zh not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105484677A (zh) * | 2016-01-22 | 2016-04-13 | 东营市兆鑫工贸有限责任公司 | 一种分层压裂管柱用的油套管联通器 |
CN105840154A (zh) * | 2016-04-19 | 2016-08-10 | 陕西汇丰悦石油科技开发有限公司 | 一种新型卡瓦式井下节流器 |
CN109505560A (zh) * | 2017-09-14 | 2019-03-22 | 中国石油天然气股份有限公司 | 节流定压阀 |
CN110388183A (zh) * | 2019-07-18 | 2019-10-29 | 中国石油天然气集团有限公司 | 一种双层组合套管及其装配方法 |
CN115354988A (zh) * | 2022-10-21 | 2022-11-18 | 中石化西南石油工程有限公司 | 一种多次开关快速堵漏阀 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201201 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 science and Technology Development Office of Bohai Drilling Engineering Co., Ltd., No. 106 Huang Hai Road, Tianjin Binhai New Area Development Zone Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20120815 |